It's called "The Most Terrifying Video You'll Ever See" and while it's not a horror movie, it is rather disturbing. And it's sweeping the Internet.

The YouTube video is actually a 10-minute lecture on global warming, delivered by Oregon high school science teacher Greg Craven. It may sound preachy, but it's hugely popular and has generated millions of hits on multiple websites.

Craven delivers the low-tech, video treatise from his home in Monmouth, Ore., armed with a black marker and a whiteboard. He methodically argues that the debate over whether humans caused global warming is moot; instead, Craven says, "the risk of not acting far outweighs the risk of acting."

The film bears plenty of similarities to Al Gore's "An Inconvenient Truth" but Craven argues that Gore didn't go far enough in his film, noting that the way the globe is heading because of climate change will make "Gore look like a sissy Pollyanna with no guts who sugarcoated the bad news."

http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20071228/youtube_071228/20071228?hub=SciTech

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